of leipzig-plagwitz



1933' o. KLEINSCHMIT FLAT GLUING MACHINE Filed Aug. 1. 1929 PatentedJan. 3, 1933 Uurrs srars OSCAR KLEINSCHMIT, OF LEIPZIG-PLAGWI'IZ,GERMANY, ASSIGNDB TO GEBRUDER BEEHMER MASCHINENFABR'IK, OFLEIPZIG-PLAGWITZ, GERMANY, A COMIPANY OF GERMANY FLAT GLUING MACHINEApplication filed August 1, 1929, Serial No. 382,779, and in GermanyJanuary 26, 1929.

7 and 13 to be connected while the latter are positioned respectivelybetween side guides 8, 9 and 8, 9. The upper strip 3 coming from agumming or moistening device 10 on the opposite side of the machineenters the transporting device from above at 11 where it is guided byand between a pair of guide shoes 12, the toes of which extend fairlyfar between the conveyor bands 3, 4 whereby the accurate entry of thestrip is properly safeguarded. In so entering, the strip 1 lies againstthe lower strip m in front of the forward edge of the sheets or sections7 and 13, while the gauges 2 advance the sheet sections between theconveyor bands 3 and 4%. The adhesive strips are thus pressed from aboveand below against one another and the sheet sections, use being made ifneed be of an auxiliary compression device such as series of upper andlower rolls 1, 0", whereby the two strips and the sheets or'sections arefirmly flat glued and consolidated before their delivery over thestacker belt 8 or any other convenient device. a

This arrangement may readily be used for flush-binding double or singlesheets in edgewise connection in the manner illustrated in Figs. 3 andat. It warrants not only an increased and cheapened production butgenerally affords a cleaner operation as compared with the usualoperation by hand when, due to the manipulation of moist and thereforesomewhat stretched strips and dry sheets, the junctions produced becomewrinkled, rendering the subsequent connection of such layers unsightlyand defective, particularly in the case of thin paper. It is only by thesimultaneous bringing together of all parts in the manner described thatthis operation results in clean and permanent joints. The second gluecontainer, instead of being arranged in the rear of the machine, couldobviously be situated at any other desired place and brought to itspoint of use by suitable guides.

I claim:

1. In fiat gluing, stripping and like machines, in combination, meansfor feeding and guiding the work, in separate sections side by side,means lateral edges of said sections a predetermined In flat gluingmachines of the type at present in use the sheets or sections which areto be stripped individually or in pairs are placed against feedinggauges by which they are mechanically advanced to a conveyor device orlike transporting attachment, in which operation they are either met andconnected together by a strip of material receiving a coating of gluewhile it is fed to the conveyor device from underneath the machine, orare' directly glued one to the other along a more or less wide margin.In the production of strip-pasted sheets or sections for book and likework several of these sections may then be readily bound up within oneanother manually in a second operation.

The present invention-concerns a device enabling double strippingto beproduced in a single operation with the aid of an ordinary flat gluingmachine.

According to the invention a second strip is fed in to the said conveyoror transporting attachment from above, from a separate paste applying ormoistening device, and in its travel is guided by mechanism arranged inclose proximity to the sheet gauges so as to synchronize with thearrival of the lower strip on the sheets or sections to be connected;both strips and the sections being thereafter fiat glued together in thecourse of their joint advance, recourse being had if need be to anauxiliary Compression device for'their final connection.

A fiat gluing machine embodying the invention is illustratedby way ofexample in the accompanying drawing in which:

Fig. 1 is a side view of the machine.

Fig. 2 is an end View thereof, and

Figs. 3 and 4 illustrate single and double sheets bound with the aid ofthis machine.

The sheets or sections are laid on the table 1, which, for this purpose,is provided with the movable gauges 2. Over this table runs a lowerendless-conveyor band 3, and over the latter a similar band 4, andbetween these two bands the work is moved along during the connectingoperation. The lower strip w coming from a gumming 0r moistening device5 enters at 6 beneath the sheet sections for spacing the adjacentdistance apart, means for applying an adhesive strip to the work frombelow, means for feeding an adhesive strip to the work from above, andmeans for securing the inner faces of the adhesive strips one to theother in the centre thereof and to the said sections means for securingthe inner faces of said 0 lateral edges of the said sheets during theirstrips one to the other along the centre thereof and to the sectionsalong the said lateral edges thereof.

.3. In fiat gluing, stripping and like machines, in combination, movablegauges and side guides for feeding and guiding the work, means forsupplying an adhesive strip to the Work from below, means for supplyingan adhesive strip to the work from above, a conveyor device comprisingtwo endless bands having juxtaposed co-operating stretches for jointlyadvancing and consolidating the Work with the strips, an auxiliarycompression device comprising series of upper and lower rolls associatedwith the cooperating stretches of said bands, and shoeshaped guide meansassociated with the side guides of the work at the entry to theconveyor.

4.1m flat gluing, stripping and like machines, in combination, a feedtable, upper and lower conveyor bands associated with said feed tableand having juxtaposed cooperating stretches, inner work guides spacedapart on saidfeed table and aligned with said conveyor bands, outer workguides mounted on said table and associated with said inner guides,means for feeding simultaneously to said conveyor bands individualsheets laid between said guides, and means for imposing separateadhesive strips simultaneously to the adjacent upper and lowersubsequent conveyance.

5. In flat gluing, stripping and like machines, in combination, a feedtable, upper and lower conveyor bands associated with said feed tableand having juxta osed cooperating stretches, inner Wori guides spacedapart on said feed table and aligned with said conveyor bands, outerwork uides mounted on said table and associate with saldmner guides,means for feeding simul- I taneously to said conveyor bands individualsheets laid between said guides, means for imposing adhesive stripssimultaneously to the adjacent upper and lower lateral edges of the saidsheets during their subsequent conveyance, and means for pressingtogether the opposed surfaces of the adhesive strips.

6. In fiat gluing, stripping and like machines, in combination a feedtable, upper and lower conveyor bands having juxtaposed eooperatingstretches associated wit-h said table, auxiliary compression rollsassociated with said juxtaposed stretches of conveyor bands, innerlateral work guides spaced apart and aligned 'with said conveyor bands,outer lateral work guides associated with said inner guides, means forfeeding simultaneously to said conveyor bands sheet-s placed between ithe said work guides, and means for imposing separate adhesive'stripssimultaneously to the adjacent upper and lower lateral edges of the saidsheets during their subsequent conveyance.

OSCAR KLEINSCHMIT.

CERTIFICATE OF CGRREGT ION.

Patent No. 1,892, 987. January 3,1933.

OSCAR KLEINSCHMIT.

it is hereby certified that error appears in the printed specificationof the above numbered patent requiring correction as follows: At the topof page 1, for the patent number "1,893,987" read "1,892,987"; and thatthe said Letters Patent should be read with this correction therein thatthe same may conform to the record of the case in the Patent Office.

Signed and sealed this 16th day of May, A. D. 1933.

/M. J. Moore.

(Seal) Acting Commissioner of Patents.

